Can someone explain in lame terms this 4x4 table?
i fully understand the TPS vs amount now but i need some clarification on the second one. I have read the info on wiki, but cannot understand it fully either. I have seen mattias config which he uses values of: 30/20/10/0 on respectivelly rising rpm values.
Q: What does the % amount represent? Is it a percentage of the 'scale' that is previously used on the TPS vs Scale table? Is it a % of the total extra fuel injected? Is it an addition to the previous scale already??
thanks
The %´s are based on the req fuel .
So first table is %´s of the req fuel and then the second one %´s of the first pw calculated
ie. 5ms req fuel
20% amount calculated in the first table = 1ms
Second calculation is 40% = 0.4ms
If it was 140% = 1.4ms is the final pw calculated for accelaration enrichment.
It´s %´s so that these numbers become more general between engines and don´t need changing if you change your injectors (reqfuel)
Quote from: AVP on September 29, 2010, 07:51:19 AMI have seen mattias config which he uses values of: 30/20/10/0 on respectivelly rising rpm values.
You can weigh these values differently. I tend to use about 100/40/10/0 now, and less on the TPS scale. That way I feel that the TPS table is the only thing I have to tweak on a new engine.
thanks for the answer.so if i didnt wantt to use table 2 i would ise 0% and then it would be as ot used to be on megatune 1.1.27, were we have only the tps vs amount.
that clears things up. cheers
No 0% means that you want to multiply with ZERO and the results will always be zero.
use 100% or 1.0 for no changes
Oh yes, its multiplication!
thanks!
I mat set the acceleration enrichment at all. Used some settings but still no luck. when pressing the pedal it goes rich then for 3-4 seconds lean and then again rich. It is on 1.1.81. Anyone has a good working map for this?
have you tuned the entire fuel map so far?
as good as i can regarding the crappy run.
I would like to share the file but dont know where to host it. Is there any file attachment thingy on the forum?
if your ve map isn´t fully developed then it´s going to be very hard for anybody to sort out your accel enrichment over the internet.
don´t mind the crappy response until the VE is ready
So, i am narrowing down the problem a bit. I have noticed that in the sites under 80 Kpa and across the rev range before the turbo starts to pull really i need quite litte VE to have an EGO Corr of 96-97%. But in the contrary at these sites i need a fair amount of enrichment to get it moving further. Thus gives me small accel then "chokes" because it gets too lean. above 80 Kpa there is no issue at all.
Now if i raise the accel enrichment then it gets at the higher sites too rich when i press the pedal.
do you have a log of this occurring
I am going to make one with a new table i made with more detail in these map areas. i want to make sure i dont have any misfire there.
I have made a new map today and got the values that the engine needs under load (small steep road). The acceleration is much better but still need to tweak the values a bit. The problem now is that during cruising at these sites i need a very big EGO Corr value (enleanment) of about 25. To say the truth i dont like it very much.
What should i do? How do you map these regions?
do you have a log?
I´d map to target lambda and then sort out accelaration enrichment
unfortunately not.
The thing is that i have big deviations between holding to a spot on a flat road than holding it to inclined road. In the one i need i.e. 75 and the other 110.
Maybe it has to do with the big turbo, when the throttle opens much air is coming in.
Exactly where do you get the MAP sensor signal line from ?
from there where the stock ECU got it on the passengers side feet.
Here is a log i did today.
See after 0.52 It looks like misfire, but when i lean the enrichment out it doesnt get any better.
I posted the log here, i hope you can see it. (Sorry if it is prohibited to post other forum links) If so please delete.
http://www.s2forum.com/forum/attachment.php?attachmentid=28654&d=1287187881
Hey, from where your MAP sensor tube coming from? We mean engine side. Is it not jammed?
There is something definitely wrong with MAP signal!
But at 54th second - it is just totally over-screwed acceleration enrichment.
i am going to check the complete line for map signal and comment back, but why do you think that it can be jammed when i press full throttle and it rises above 100 kpa it boosts and goes well.
MAP signal almost did not follow throttle movement. It must! And if follows now - then super slow!
Line is hardly restricted somewhere.
With minimal delay, when you press WOT you should see 100 kPa minimum on the MAP signal.
Remove acceleration enrichment completely until you have tuned the engine and sorted out your problems.
Please upload your log files so that it's available publically. Here works everytime :
http://www.vems.hu/wiki/index.php?page=FileArea
Use the file manager link and given username/password, then either create your own MembersPage/Username directory. (or just upload it anywhere without bothering to keep it nice and tidy)
I would like to thank all of you for your help and your knowledge. The line that is going to the ECU was twisted and caused all these issues. Now with simple and "generic" acc enrichment it goes very well....tomorrow I am going to spent more time on it and comment.